Remote Assistance on Chrome OS Part III - NativeMessageHost

remoting/host/native_messaging/native_messaging_pipe.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/host/native_messaging/native_messaging_pipe.h"
+
+#include "base/callback_helpers.h"
+#include "base/json/json_reader.h"
+#include "base/json/json_writer.h"
+#include "base/values.h"
+
+namespace remoting {
+
+NativeMessagingPipe::NativeMessagingPipe() {
+}
+
+NativeMessagingPipe::~NativeMessagingPipe() {
+}
+
+void NativeMessagingPipe::Start(
+    scoped_ptr<extensions::NativeMessageHost> host,
+    scoped_ptr<extensions::NativeMessagingChannel> channel,
+    const base::Closure& quit_closure) {
+  host_ = host.Pass();
+  channel_ = channel.Pass();
+  quit_closure_ = quit_closure;
+  channel_->Start(this);
+}
+
+void NativeMessagingPipe::OnMessage(scoped_ptr<base::Value> message) {
+  std::string message_json;
+  base::JSONWriter::Write(message.get(), &message_json);
+  host_->OnMessage(message_json);
+}
+
+void NativeMessagingPipe::OnDisconnect() {
+  if (!quit_closure_.is_null())
+    base::ResetAndReturn(&quit_closure_).Run();
+}
+
+void NativeMessagingPipe::PostMessageFromNativeHost(
+    const std::string& message) {
+  scoped_ptr<base::Value> json(base::JSONReader::Read(message));
+  channel_->SendMessage(json.Pass());
+}
+
+void NativeMessagingPipe::CloseChannel(const std::string& error_message) {
+  if (!quit_closure_.is_null())
+    base::ResetAndReturn(&quit_closure_).Run();
+}
+
+}  // namespace remoting